/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2010,2011,2012,2013 TELEMATICS LAB, Politecnico di Bari
 *
 * This file is part of LTE-Sim
 *
 * LTE-Sim is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation;
 *
 * LTE-Sim is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with LTE-Sim; if not, see <http://www.gnu.org/licenses/>.
 *
 * Author: Giuseppe Piro <g.piro@poliba.it>
 */

#ifndef PACKET_H_
#define PACKET_H_

#include <list>
#include "Header.h"
#include "PacketTAGs.h"

class Packet {
public:
    Packet();
    virtual ~Packet();

    /*
     * The time stamp represents the time instant in which
     * the packet is generated. It cannot be modified during the
     * simulation. Moreover, it will be used to compute the
     * transmission delay.
     */
    void
    SetTimeStamp (double time);
    double
    GetTimeStamp (void) const;

    /*
     * m_size represents the size of packet,
     * including also the headers overhead.
     * Is is updated every time an header is added or
     * deleted
     */
    void
    SetSize (int size);
    void
    AddHeaderSize (int size);
    int
    GetSize (void) const;
    void
    UpdatePacketSize (void);


    void
    AddUDPHeader (UDPHeader *header);
    UDPHeader*
    GetUDPHeader (void) const;

    void
    AddIPHeader (IPHeader *header);
    IPHeader*
    GetIPHeader (void) ;

    void
    AddPDCPHeader (PDCPHeader *header);
    PDCPHeader*
    GetPDCPHeader (void) const;

    void
    AddRLCHeader (RLCHeader *header);
    RLCHeader*
    GetRLCHeader (void) const;

    void
    AddMACHeader (MACHeader *header);
    MACHeader*
    GetMACHeader (void) const;


    int
    GetSourceID ();
    int
    GetDestinationID ();
    int
    GetSourcePort ();
    int
    GetDestinationPort ();
    int
    GetSourceMAC ();
    int
    GetDestinationMAC ();

    void
    SetID (int uid);
    int
    GetID (void);

    PacketTAGs*
    GetPacketTags (void) const;
    void
    SetPacketTags (PacketTAGs* tags);

    Packet*
    Copy (void);

    void
    Print ();

private:
    double m_timeStamp;
    int m_size;

    int m_id;

    UDPHeader *m_UDPHeader;
    IPHeader *m_IPHeader;
    PDCPHeader *m_PDCPHeader;
    RLCHeader *m_RLCHeader;
    MACHeader *m_MACHeader;

    PacketTAGs *m_tags;
};

#endif /* PACKET_H_ */
